Question: If the following was a residuals-vs-fitted plot for a linear regression model, which assumption was most obviously violated?(please refer to attachment) a) No assumption appears

If the following was a residuals-vs-fitted plot for a linear regression model, which assumption was most obviously violated?(please refer to attachment)

a) No assumption appears to be violated

b) Linearity

c) Equal variances

d) Independent observations

e) Normality

If the following was a residuals-vs-fitted plot for a linear regression model,

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